The sales of traditional sedans have taken a hit in recent years due to the popularity of crossover SUVs, but that hasn’t stopped Nissan coming up with a new sedan concept in the form of the Nissan Ellure Concept hybrid vehicle. The company says the car, which will debut at the 2010 LA Auto Show, isn’t intended as a preview of any upcoming production model, but is rather a confirmation that the sedan still has some life left in it yet and will remain a core part of Nissan’s product portfolio.